Stone setting tool



' w. F. BAYER STONE SETTING TOOL Flled Dec 22 1948 Patented Dec. 12, 1959 UNITED STATES PATENT OFFICE 2,533,870 sToNE SETTING TOOL William F. Bayer, Leonia, N. J.

Application December 22, 1948, Serial No. 66,771

3 Claims.

This invention relatesto a stone setting tool.

It is an object of thepresent invention to provide a stone settin tool adapted to be used with a jewelers press which will set stones without subjecting them to heavy pressure and will not be likely to break any of the stones during the setting operation, as is done with the tools used heretofore.

It is another object of the present invention to provide a tool arrangement for settin stones in jewelry pieces wherein the stone itself will be projected into the setting piece independently of the opening retaining the stone and in such manner to permit the fingers of the setting piece to be extended over the stone without interference from the wall of the recess in the tool normally holding the stone prior to the final pressing operation and wherein the parts of the tool are spring pressed and adapted to give as the tool members are brought together upon the stone and stone setting piece, and wherein one of the tool members has an engaging part connected with its main part so as to have floating or self-aligning action with the setting piece upon the setting operation being effected and wherein a rubber cushion element is provided between the parts to allow for this action.

Other objects of the present invention are to provide a stone setting tool which is of simple construction, inexpensive to manufacture, easy to operate, compact, consumes little space, has minimum parts, easy to be supplied with the stone prior to the setting operation and convenient to use.

For other objects and for a better understanding of the invention, reference may be had to the following detailed description taken in connection with the accompanying drawing, in which Fig. 1 is a perspective view of the jewelers press adapted to receive and retain the tool members of the present invention.

Fig. 2 is a collective and sectional view of the tool members and of the portions of the press retaining the members, the View being taken gener ally on line 22 of Fig. 1.

Fig. 3 is a fragmentary and part sectional view showing the tool members in place above and below a setting in a jewelry piece preparatory to being supplied with a stone.

Fig. 4 is a sectional view of the upper member illustrating the manner in which one of its parts may be shifted in order that the member can be aligned properly with the setting piece.

Fig. 5 is a perspective view of the setting piece before the same has been disposed in and secured to a pin or other member.

Fig. 6 is a fragmentary sectional View of a pin with the stone setting piece secured therein and without the stone.

Fig. 7 is a perspective and fragmentary view of the pin with the stone secured in the setting piece by it prongs.

Referrin now to the figures, it represents a table on which a press it is supported. This press has a base plate ill and an upwardly extending member [3 thereon adapted to carry die It constructed according to the present invention. Also projecting upwardly from the base is an arbor l5 through which is adjustable a rod E6 on which punch member ll, forming a part of the present invention, is connected and fixed by a set screw 58, Fig. 2. The slide is connected to a bell crank l9 pivoted on the arbor 55 at El and having a long depending arm 22 extending down- Wardly through the table it to a location near the floor and having a foot tread 23 thereon.

The die M has a main part 241 with top and bottom openings 25 and 2t therein. Within the bottom opening it is a spring El for supporting a pin 28 through its enlargement 29 thereon. The spring 2'?! is held within the opening 26 by a plug 3| screw threaded into the end of the opening Adjustable in the opening 25 and surrounding the pin 28 is a sleeve 32 having a cup-shaped recess 33 for receiving the stone. The sleeve 32 is supported on a spring 3% which normally maintains the sleeve 32 in an elevated position and against threaded stop pin 3%. The spring 27 is stronger than the spring 33 so that the sleeve 32 may be depressed without the pin 23 being depressed. As the sleeve 32 is depressed, the pin 28 will elevate any stone which may have been disposed in the recess 33. Pin 28 will lift a stone 36 out of the recess and mak it secure within a cup setting 3?, Fig. 3, while permitting prongs thereof to be depressed b the inclined side walls of the cup-shaped recess 33 over the stone to clinch the same in the manner as illustrated at 39 in Fig. 3. The cup setting is usually fixed to a bar or other jewelry piece ill by upsetting the projected end thereof in the manner as indicated at 42. By lifting the stone it: and by having a weaker spring 84 for the surrounding sleeve 32, the prongs 33 can be more readily and uickly bent over the stone, the sleeve 32 giving sufiiciently to allow the prongs to slide down over the edges of the stone, and over the top face of the same to clinch the stone. With the stone in place, the pin 28 will give to prevent damage.

The punch ll comprises a, main part M which is shouldered, as indicated at 45, against the slide 56 and which extends into an opening 416 within the slide for retension by the set screw IS. A lower part 47 is connected to the upper part 45 by a screw 48 threaded at its lower end to receive the part M and having an enlarged head 49 resting upon a shoulder 5| in an upper opening 52 of the part 44. Screw 48 extends through an opening 53 which is of larger diameter than that of the screw 48 whereby to allow for lateral shiftficiently during the setting operation and to pre vent damage. The lower part i'l can shift in the manner as illustrated in Fig. 4 in order that its pin 55 can be aligned with the opening. in the cup setting 3?. The pin 55 is held. in its projected position by a spring 56 lying within the part ll and reacting against the lower end of the screw 48.

To assemble the stone upon the cup setting, the stone is placed in the recess 33 and the jewelry piece 45 with the stone setting 37 held above the same with the prongs 38 lowered into the recess. The punch H is then brought down by foot action-upon the treadle 23 of the depending arm 22 so that the pin 55 entersthe cup setting at that the prongs 38 ofthe stone setting 3'5 forced down to a solid stop. Automatically, stone'36 is lifted by pin 28 to hold the stone against the cup setting, while at the same time, making room for the prongs to surround and b'e 'clinched upon the stone 36. Upon release of the foot trea-dle 23, the parts will be automatically brought back to their original position. The stone is gently but firmly fixed in the setting. n V w While various changes may be made in the detail construction, it shall be understood that such changes shall be within the spirit and scope of the present invention as defined by the appended claims.

What is claimed is: p

1. A stone setting tool arrangement comprising stone receiving die, said die having 'a main part with openings in the opposite ends thereof, a sleeve adjustable in the top opening, a stop for limiting the outward movement of the sleeve, spring for urging the sleeve against the top, said sleeve having a cup-shaped recess for receiving a stone, a pin extending through the 'main part and through the sleeve for the purpose or projecting the stone into the stone setting on the jewelry piece, a spring in the bottom openingurging the pin upwardly to project the stonei'n't'o the stone setting while the sleeve ispermi'tted to be retracted, and a punch member adapted to engage the stone setting from the side thereof reversed from that in which the stone is to be set, said pin serving to elevate the stone into the stone setting and leave room for the prongs of the stone setting to be guided about thefsid'es of the stone when the punch and die are brought together upon the stone setting and upon the stone. I

2. A stone setting tool arrangementcomprisa stone receiving die, said die having a main part spring for urging the sleeve against the stop, said sleeve having a cup-shaped recess tor receiving a stone, a pin extending through the main part and through the sleeve l'or the purpose or projecting the stone into the stone setting on the jewelry piece, a spring in the bottom opening 7 urging the pin upwardly to project the stone into with openings in the opposite ends thereof, a 30 sleeve adjustable in, the top opening, a stop for limiting the outward movement of the sleeve, a

the stone setting While the sleeve is permitted to be retracted, and a punch member adapted to engage the stone setting Irom the side thereof reversed from that in which the stone is to be set, said pin serving to elevate the stone into the stone setting and leave room for the prongs of the stone setting to be guided about the sides of the stone when the punch and die are -brought t0- gether upon the stone setting "andupon the stone, and the spring for mantaining the pin of the die part in an elevated position being "stronger than the spring for maintaining thesleev'e in it's elevated position and against its stop.

3. A sto'nesetting tool arrangement comprising a stone receiving die, said die having a main part with openings in the opposite ends ther'eofla sleeve adjustable in the top opening, a stop for limiting the outward movement "of the sleeve, a

spring for urging the sleeve against the stop, said sleeve having a c'up shaped recess for receiving a stone, a pin extending through themain part and through thesleeve for the purpose of projecting the stone into the stone setting an the jewelry piece, a spring in the bottom opening urging the'pi'n upwardly to project the stone into the stone setting while the sleeve is"pern1itted to be retracted, and a punch member adapted to engage the stone setting from the side thereof reversed from that in which the stone is to be set, said pin serving to elevate the stone-into the stone setting and leave room for the prongs of the stone setting to be guided about thesides of the stone whenthe punch anddie are brought together upon thesto'ne setting and upon tire-stone; and said punch member comprising upper and lower parts, said pin being projected from the lower part, said upper part having an opening therein a screw extending through the opening of the upper part and threaded-ly connected to the lower part, the diameter of the opening in the upper part being greater than the diameter of the screw whereby to permit lateral adjust-'- ment ofthe lower part, and a cushion piece "disposed between the upper and "lower parts.

' WHJLI'AM F. BAYER}. REFERENCES 'oI rED The following, references are of record in the file of this patent:

UNITED sTA'TEs PATENTS:

Number J Name 7 Date 143515399 Krirnmling 'Nov. 26, 1912 1,442,986 Toy Jan. 23, 1923 

